Means for observing dust-laden currents of air.



D. T. KENNEY.

APPLICATION rum) JUNE 1,1905.

\ Y m J me D m m mv V m a m K g 4M F 9 a 6 m 7 w through which thedust-laden air is caused to vacuum pump, whereby the amount of dustDAVID T. KENNEY, OF NORTH PLAIKFIELD, NEW JERSEY, ASSIGYOR TO ACUUMCLEANER COMPANY, OF NORTH PLAINFIELD, NEW JERSEY, A CC-RPORAIION OF NEWJERSEY.

EHZANS FOE-3 QBSBBVIHG' D'UST-LADEN C'UREFQEEQYLS 3F AER.

No. ceases.

I Specification of Letters Patent.

Patented Dec. 22, 1908.

Original application filed. November 29, 1901, Serial No. 84:5)58.Divided. and this application filed June It, 1905.

fierisl No.

T 0 all whom it may concern:

Be it known that i, Davin T. KnnNnY, a citizen of the United States,residing in the borough of North Plainfield, county of Somerset, andState of New Jersey, have invented new useful Improvements in Means forObserving Dust Laden Currents of Air, of which the following is aspecification.

In the cleaning of carpets, upholstery, and other articles by means ofwhat is commercially known as the vacuum cleaning syste1n, in whichsystem the dirt and dust carried by the article to be cleaned is drawntherefrom by means of a suction produced within the cleaning implement,it is desirable to provide means for ascertaining whether dust or dirtis being withdrawn from the article by the apparatus, in order that theoperation may be continued as long as dust is being removed by means ofthe air current, and in order that the operation may be dis continuedwhen dust ceases to be withdrawn. In my prior application, filedNovember 29, 1901, serially numbered 84,058, I which has since thefiling of this application, namely, on March 19, 1907, issued as PatentN o. 847, 947, I have shown an apparatus for use in such a system, andin the said application show in connection therewith an observationchamber having transparent walls,

pass on its way from the hand-tool to the carried by the air can beobserved. In this application, which is filed as adivision and as acontinuation of the said prior application, I claim the means thereinshown for so observin the character of the air current.

ilefer'ring to the accompanying drawings, in which corresponding partsare designatedby corresponding marks of references: the figure is asectional view of a wet separator, having the observation chamberforming the subject matter or" this application attached thereto.

In these drawings, 1 represents a suitable vessel partly filled withwater, iormingwhat is known as a wet separator, from which leads asuction pipe 2. This pipe can be connected to some suitable means ofproducing a l vacuum, such for instance as a pump. EX- tending throughthe top 3 a of the vessel is'the ter.

the dust contained therein.

vertical pipe 3, the low-er end of which pro-- gects below the level ofthe water in the 1 rator vessel. The dust or dirt is carried throughthis pipe directly into the liquid and is precipitated therein. Theupper end of pipe 3 carries a head 41 This head carries on one side atubular glass 5, closed at one end, and intothe glass projects, throughthe op posits side of the head, the tube 6, the tube being capabie ofsliding within the head owing to the packing box 7 carried by the latThe tube 6 is connected by means of a pipe 8 with a hand-implement, suchis described in the aforesaid original application, of which this is adivision, and which is adapted to be passed over the surface to which itis applied for cleaning.

With the construction of the parts shown, it will be seen that whenairis exhausted 'rom the upper part of the separator vessel 1, a vacuum iscreated in the tube 6, and that in consequence thereof, air is drawnthrough the hand-implement removing the dirt and dust from the articleto be cleaned and depositing it in thc'separator vessel 1. Thisdust-laden air, flowing through the pipe 8 and tube 6 is discharged intothe observation chamber within the glass cup 5, and flows therefrom downthe pipe 3 and up through the water, where it is purified. 1n theobservation chamber the air current is deflected, whenleaving the tube6, by the closed end of the chamber, and this results i rendering morevisible The chamber thus serves as an efiicient means for determiningwhether or not the air drawn in through the hand-implement is removingdust from the article to be cleaned. There is no precipitation, depositor accumulation of dust in the chamber because of the strong air currentwhich reachesevery part thereof.

Having thus described my invention, what 1 claim new and desire tosecure by Letters iatent is:

1. in combination with a current oi? dust-laden air, means said passagefor intercepting the current, such means including a transparentchamber, in which the action of the intercepted current can be observed.

in combination with. a for a current of dust-laden air, means connectedrun transparent receptacle, inwhich the action of the current in itschanged direction can be observed.

.3. In combination with a passage for a current of dust-laden air, meansin said passage for intercepting the current and compelling it to changeits direction, and a transparent chamber into which the interceptedcurrent is admitted and from which it is discharged. 1

' 4. In combination with a passage for a current of dust-laden air, atransparent chamber projecting at an angle to the general direction ofsaid passage, and means for compelling the current to enter said chamberand to leave said chamber and return to said passage.

5 In combination with a passage for a current of dust-laden air, atransparent chamber having a closed end, and an inlet opening within thesaid chamber opposite t e closed end thereof and forming a part of theair passage, whereby the dust is discharged "against the transparentwall of the chamber.

DAVID T. KENNEY.

Witnesses M. OTONNOR, HUGH H. SENIOR.

